Question

- If 17th March, 2018 is Saturday, which day is 5th October, 2020? (A) Monday (B) Saturday (C) Sunday (D) Tuesday​

Answer 1

Answer:

a) is the correct answer

Answer 2

The calendar is one of the most responsible topics in logical reasoning.

Take the last two digits of the year such as 20

Divide the year by 4 and subtract the quotient such as 20/4=5

Take a given date such as 5

Take unusual days of the month of October is 0.

Take strange days of the year such as 6 odd days.

Add all the values and divide by 7 then the remainder is obtained.

Besides that,  

$20+5+5+0+6=36/7=1$

the remainder is 1

The day is Monday.

Thus the day of 5th October 2020 is Monday.